Reinforced cardboard and roofing-plate.



n UNTTED STATES PATENT onirica.

4 HERMANN SCHLISSKE, OF MUNSTERLAGE NO. 85, PROVINCE OF HANOVER, GERMANY.

REINFORCED CARDBOARD AND ROOFING-PLATE.

Specification of Letters Patent.

Application led May 20, 1910. Serial No. 562,383.

Patented Apr. 25, 1911.

To all whom it may concern.'

Be it known that I, HERMANN SoHLIssnn, a subject of the German Emperor, residing at Munsterlage No. 85, in the Province of Hanover, in the German Empire, have invented a certain new and useful Improvement in Reinforced Cardboard and Roofing-Plates, of which the following is a specification.

The object of this invention is to render card-board of all kinds (including the socalled linen boards, art boards, and leather boards) more eficient for the various purposes to which that material is or can be 'applied, for example, for packing, roofing wall and floor covering and various constructional purposes.

The invention substantially consists in embedding durable, reinforcing matter be' tween layers of card-board to which said reinforcing matter is firmly united so as to make a strong and durable board.

In the annexed 'drawings, Figure 1 is a perspective elevation of a reinforced board, with part of the top la er folded back. Fig. 2 shows the board app ied to a roof.

The reinforced structure comprises, in general, outer layers of cardboard b-b, intermediate layers of oiled jute webbin e, and a metallic reinforcementembedde in the oiled jute webbing, the whole being united together by means of pressure with or without the use of an adhesive material such as tar. The metallic reinforcement is preferably in the form of a plurality of rods a' disposed in parallel relation, between and around which the oiled jute webbing is wound in alternation whereby the rods are with or without intermediate layers ofV card-board, may be used.

Fig. 2 shows the reinforced board used as a roofing plate, which rests upon supporting rails o on a. corrugated roof (Z. The rails o may consist ofv impregnated felt or other matter. The entire roof, or such part of it as is to be protected, is covered with reinforced board ap lied as shown.- The space under the boar-Lf; between the rails o c011- tains an insulating layer of air.

What I claim as my invention anddesire to secure by Letters Patent of the United States is 1. A reinforced structure comprising outer layers of cardboard, oiled jute webbing between the said cardboard layers, and a metallic reinforcement embedded in the oiled jute webbing.

2. A reinforced structureV comprising outer layers of cardboard, oiled jute webhing disposed between the said layers of cardboard, and metal reinforcing rods, the said oiled jute webbing being folded alternately backward and forward between and nesses.

HERM. SCHLISSKE. Witnesses:

J. M. Bowooon. R. PAUL THOMPSON. 

